Car construction.



H. M. PFLAGER.

GAR CONSTRUCTION.

APPLICATION FILED PEB.21,1914.

Patented June 30, 1914.

2 SHEBTSSHEET 1.

H. M, PFLAGER.

GAB. GONSTRUGTION.

APPLIOATION FILED 1 212.21, 1914.

1,101,955, Patented June 30, 191 1 2 SHEETS-SHEET 2.

HARRY M. PFLAGER, OF ST. LOUIS, MISSOURI.

CAR CONSTRUCTION.

Specification of Letters Patent.

Patented June so, 1914.

Application filed February 21, 1914. Serial No. 820,184.

To all whomit may concern:

Be it known that I, HARRY M. PFLAGER, a citizen of the United States, residing at the city of St. Louis, State of Missouri, have invented a certain new and useful Improvement in Car Construction, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure '1 is a partial top plan view of my improvement in car construction. Fig. 2 is a side elevational View partly in section. Fig. 3 is a vertical transverse sectional ,view.

Fig. 4: is an end elevational view. Fig. 5 is a horizontal sectional view through the journal box and pedestal.

This invention relates to a new and use; ful improvement in car construction of that type disclosed in United States Letters Pat- .ent No. 999,253 granted to me August 1,

My present invention is intended to produce a truck side frame which is flexible so as to render the car easy riding.

In the drawings 1 indicates the body bolster under each end of which is secured a casting 2, said casting having pedestal jaws 3 depending therefrom and arranged. in

pairs at each end of said casting, said pedestal jaws being provided with openings or slots in their inner vertical walls to receive guiding projections 4 extending from the journal boxes 5 in which are mounted axles 6 carrying the wheels 7. The journal boxes will thus have independent vertical movement in their pedestals, said journal boxes supporting an equalizing bar 8 on which is arranged a concave bearing 9.

10 indicates a spring follower having a spherical bearing on its under side seated in the equalizer bearing 9, there bein springs 11 interposed between the spring fo lower 10 and the upper wall of the casting 2. Casting 2 forms a housing for the springs to prevent their accidental displacement, said springs likewise being centered by teats such as are commonly employed in truck construction. The outer pedestal jaws 12 are preferably in the form of castings so as to permit easy introduction and removal of the journal boxes, the extremities of all of said pedestal bar 13.

By the above construction, it will be noted that the equalizer bar permits independent vertical movement of the axle boxes, the rocking bearing permitting this movement. The ends of the equalizing bar preferablyhave an extended flat bearing surface which cooperates with the journal boxes for the purpose of normally maintaining the journal boxes in the same horizontal plane. These bearing faces, however, permit any journal box to fall or rise independently of its companion passing over inequalities in the track.

It will be noted by reference to Fig. 5 that the lugs on the sides of the journal boxes are narrower than the opening in the pedestals receiving them, thus permittin said jaws being held together by the tie pedestals in a direction longitudinal of the axle.

While I have shown my improved truck side frame secured rigidly to the body bolster ofthe car, it is obvious thatit could be secured to the side sills or o .ier portions of the car underframe and in the claims where this element is mentioned as being secured to the car underframe, it will be understood that such an expression means that the truck side frame is secured rigidly to the car body or to some of the frame members thereof.

I claim:

1. In car construction, the combination of truck side frames rigidly secured to the car underframing and having pedestal jaws, journal boxes guided vertically by said pedestal jaws, an equalizer bar having its end supported by said journal boxes, and springs interposed between said equalizer bar and said car underframe.

2. In car construction, a truck side frame rigidly secured to the underframing of the car, journal boxes mounted for verticalmovement in said side frame, an equalizer bar having its ends cooperating with said journal boxes, said equalizer bar also carrying a seat, a spring follower bearing in said seat, and springs interposed between said follower and the car underframe.

' 3. In car construction, a truck side frame rigidly secured to the car underframe, journal boxes mounted for vertical movement in aedesmls rig 61y seem-ed t0 said underframe,

said side frame,

flat faces at each goaunal bC-ZLQS mounted. for vertical and 1011- journal box s, we. mp I gitudinal movement in seifi. pedestals an tween the equeiizin 1 L A equalizer her having itsends'bearing eg 'inst frame. the journal boxes, and springs inter seed be 4'. 111 e212? ee11eiruetime mtie'n 0f Ween the equalizer bar and the HIKE; 1 pedestals rigidly secured we can; underin testimony whereof I he'ieunto 21. my

frame, jeuz'lmi boxes in signature in the presence of two Wifnesses,

said pedestals en equalizer hm: i'e this 7th day 01" February, 1914,

and sun iOltEd e smd 10m" and HARRY PFLAGER .L A J 7 u 9 Y M I sprmgs lme'rposed .etwee' x equabzer Vahmesses:

bar and said car under M. PB SMITH; 5. in cm: e011e""1 1et10n, e11 ullderfimlne, i Q BUTLER. 

